The Element.prepend()
method inserts a set of Node
objects or string objects before the first child of the Element
. String objects are inserted as equivalent Text
nodes.
The Element.prepend()
method inserts a set of Node
objects or string objects before the first child of the Element
. String objects are inserted as equivalent Text
nodes.
js
prepend(param1) prepend(param1, param2) prepend(param1, param2, /* …, */ paramN)
None (undefined
).
HierarchyRequestError
DOMException
Thrown when the node cannot be inserted at the specified point in the hierarchy.
js
let div = document.createElement("div"); let p = document.createElement("p"); let span = document.createElement("span"); div.append(p); div.prepend(span); console.log(div.childNodes); // NodeList [ <span>, <p> ]
js
let div = document.createElement("div"); div.append("Some text"); div.prepend("Headline: "); console.log(div.textContent); // "Headline: Some text"
js
let div = document.createElement("div"); let p = document.createElement("p"); div.prepend("Some text", p); console.log(div.childNodes); // NodeList [ #text "Some text", <p> ]
The prepend()
method is not scoped into the with
statement. See Symbol.unscopables
for more information.
js
let div = document.createElement("div"); with (div) { prepend("foo"); } // ReferenceError: prepend is not defined
Specification |
---|
DOM Standard # ref-for-dom-parentnode-prepend① |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
prepend |
54 | 17 | 49 | No | 41 | 10 | 54 | 54 | 49 | 41 | 10 | 6.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/Element/prepend